On 1/5/2015 7:14 AM, Philippe BOURDEU d'AGUERRE wrote: > > Since Centos 6.6 update (kernel 2.6.32-504), the controller doesn't > initialize at boot. Reverting to kernel 2.6.32-431 allows server to > boot fine. works here fine on the 9261, which is an OEM version of the same card with the connectors in a different orientation... you might check your LSI firmware revision. # uname -rv 2.6.32-504.1.3.el6.x86_64 #1 SMP Tue Nov 11 17:57:25 UTC 2014 # cat /etc/redhat-release CentOS release 6.6 (Final) # dmesg |grep LSI mpt2sas0: LSISAS2008: FWVersion(14.00.01.00), ChipRevision(0x03), BiosVersion(07.27.00.00) scsi 0:0:1:0: Enclosure LSI CORP SAS2X28 0717 PQ: 0 ANSI: 5 scsi1 : LSI SAS based MegaRAID driver scsi 1:0:8:0: Enclosure LSI CORP SAS2X36 0717 PQ: 0 ANSI: 5 scsi 1:2:0:0: Direct-Access LSI MR9261-8i 2.12 PQ: 0 ANSI: 5 scsi 1:2:1:0: Direct-Access LSI MR9261-8i 2.12 PQ: 0 ANSI: 5 scsi 1:2:2:0: Direct-Access LSI MR9261-8i 2.12 PQ: 0 ANSI: 5 # /opt/MegaRAID/MegaCli/MegaCli64 -ShowSummary -aAll System Operating System: Linux version 2.6.32-504.1.3.el6.x86_64 Driver Version: 06.803.01.00-rh1 CLI Version: 8.02.16 Hardware Controller ProductName : LSI MegaRAID SAS 9261-8i(Bus 0, Dev 0) SAS Address : 500605b003bbef10 FW Package Version: 12.12.0-0046 Status : Need Attention BBU BBU Type : iBBU Status : Remaining Capacity is Low Enclosure Product Id : SAS2X36 Type : SES Status : OK Product Id : SGPIO Type : SGPIO Status : OK ...... -- john r pierce 37N 122W somewhere on the middle of the left coast